单词	anechoic
释义	anechoic /ˌanɪˈkəʊɪk / adjective technical 1Free from echo: an anechoic chamber... The fact that this has pencil thin walls, is anechoic (has no echoes coming from it), and shows through transmission shows that this is a benign cyst. My goal in the anechoic chamber was to determine what effect the front-panel controls have on the signal, and if they would allow the loudspeaker to be tuned to produce a flat response across the audio spectrum. The lab includes a fully anechoic chamber for engine and transmission studies as well as a semi-anechoic chamber with a 160 hp chassis-dyno for full vehicle testing. 1.1(Of a coating or material) tending to deaden sound: the Russians treat their submarines with anechoic coatings to reduce sonar returns... To achieve this low acoustic signature, the Virginia incorporates newly designed anechoic coatings, isolated deck structures and a new design of propulsor.
随便看	willed willemite Willemstad willet willful willfully Will, George F. will have (or want) none of something William William I William Morris William of Occam William of Orange William, Prince Williams Williamsburg Williams, Hank Williams, John Williams, J. P. R. Williamson, Henry Williamsport Williams, Robin Williams, Roger Williams, Rowan Williams, Serena

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